MCMedicalCodingSoftware
A56.11

A56.11: Chlamydial female pelvic inflammatory disease

Billable / specific codeICD-10-CM

A56.11 is a billable, specific ICD-10-CM code for chlamydial female pelvic inflammatory disease. It is valid for submission on a claim.

Check A56.11 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above A56.11

A category’s note binds every code beneath it.

Written on A56: Other sexually transmitted chlamydial diseases

  • neonatal chlamydial conjunctivitis (P39.1)
  • neonatal chlamydial pneumonia (P23.1)

Excludes2 inherited from the categories above A56.11

Not part of this code, but both may be coded when both are present.

Written on A56: Other sexually transmitted chlamydial diseases

  • chlamydial lymphogranuloma (A55)
  • conditions classified to A74.-

Other codes that can never be billed with A56.11

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • N74Female pelvic inflammatory disorders in diseases classified elsewhere

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

A56.11 is named in 5 Medicare coverage policies: 5 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56421Billing and Coding: CT of the Abdomen and Pelvis
  • A58710Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
  • A58720Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
  • A58747Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing

Alphabetic index entries that lead here

  • Chlamydia, chlamydial›endometritis
  • Chlamydia, chlamydial›salpingitis
  • Endometritis›chlamydial
  • Salpingitis›chlamydial
  • Chlamydia, chlamydial›female›pelvic inflammatory disease
  • Chlamydia, chlamydial›female›pelviperitonitis
  • Disease, diseased›pelvis, pelvic›inflammatory›chlamydial

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under A56.1

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.